JP5721801B2 - Eaves - Google Patents

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JP5721801B2
JP5721801B2 JP2013207710A JP2013207710A JP5721801B2 JP 5721801 B2 JP5721801 B2 JP 5721801B2 JP 2013207710 A JP2013207710 A JP 2013207710A JP 2013207710 A JP2013207710 A JP 2013207710A JP 5721801 B2 JP5721801 B2 JP 5721801B2
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wall portion
groove
eaves
front plate
upper wall
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JP2014025341A (en
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康宏 吉川
康宏 吉川
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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Description

本発明は、軒樋に関する。   The present invention relates to eaves.

従来、軒先等に設置される軒樋として、例えば下記特許文献１に記載されているような、前面板に水切り段差が設けられ、この水切り段差を介して前面板の上壁部と下壁部とが連設された構成の軒樋が知られている。このような構成の軒樋では、上壁部の外面を伝って水が流れ落ちても水切り段差の先端部分で水切りされて落下されるので、下壁部の外面にまで水が伝わることを防止することができる。   2. Description of the Related Art Conventionally, as eaves eaves installed at eaves or the like, for example, as described in Patent Document 1 below, a drainage step is provided on a front plate, and an upper wall portion and a lower wall portion of the front plate are provided via the drainage step There is a well-known eaves with the structure of In the eaves with such a configuration, even if water flows down along the outer surface of the upper wall portion, the water is drained and dropped at the tip of the draining step, so that the water is prevented from reaching the outer surface of the lower wall portion. be able to.

また、従来、例えば下記特許文献２に記載されているような、前面板に樋長手方向に延在する凹溝状の段差が形成され、この段差を介して前面板の上壁部と下壁部とが連設され、さらに、前記した段差の先端（上側の端部）に水切りリブが垂下された構成の軒樋が知られている。このような構成の軒樋では、上壁部の外面を伝って水が流れ落ちても水切りリブによって水切りされて落下されるので、上壁部の外面を伝って流れ落ちた水をより確実に水切りすることができる。   In addition, conventionally, for example, as described in Patent Document 2 below, a step having a groove shape extending in the longitudinal direction of the heel is formed on the front plate, and the upper wall portion and the lower wall of the front plate are interposed through the step. An eaves bowl having a configuration in which a draining rib is suspended from the tip (upper end) of the step is also known. In the eaves with such a configuration, even if water flows down along the outer surface of the upper wall portion, it is drained and dropped by the draining rib, so the water that has flowed down along the outer surface of the upper wall portion is drained more reliably. be able to.

特開平１１−２４７３７９号公報Japanese Patent Laid-Open No. 11-247379 特開２００９−７７４４号公報JP 2009-7744 A

ところで、近年、軒樋の外観をシンプルにするというデザイン的な要望がある場合があり、このような要望がある場合には、前面板に設けられた水切り段差の奥行き寸法（前後方向の寸法）を小さくして目立たないようにする必要がある。   By the way, in recent years, there is a case where there is a design request for simplifying the appearance of the eaves bowl. In such a case, the depth dimension of the drainage step provided on the front plate (the dimension in the front-rear direction). It is necessary to make it less noticeable.

しかしながら、水切り段差の奥行き寸法を小さくすると、上壁部の外面を伝って落ちる水が十分に切ることができず、上壁部の外面を伝って落ちた水が水切り段差を経由して下壁部の外面に伝わり易くなるという問題が生じる。   However, if the depth dimension of the draining step is reduced, the water falling along the outer surface of the upper wall portion cannot be cut sufficiently, and the water that has fallen along the outer surface of the upper wall portion passes through the draining step to the lower wall. There arises a problem that it is easily transmitted to the outer surface of the part.

一方、上記した後者の軒樋では、水切りリブの突出長さ寸法を小さくすることで水切りリブが破損し難くなり、成形性も向上するが、水切りリブの突出長さ寸法を小さくすると、水を十分に切ることができず、上壁部の外面を伝って落ちた水が水切りリブの裏側に回って段差の表面に伝わり、その段差の表面から下壁部の外面に伝わるという問題が生じる。   On the other hand, in the latter eaves bowl, the draining rib is less likely to be damaged by reducing the protruding length dimension of the draining rib, and the moldability is improved. There is a problem that water that has not been cut sufficiently and has fallen along the outer surface of the upper wall portion is transferred to the surface of the step around the back side of the draining rib, and is transmitted from the surface of the step to the outer surface of the lower wall portion.

本発明は、上記した従来の問題が考慮されたものであり、前面板の上壁部の外面を伝って流れ落ちた水が前面板の下壁部の外面にまで伝わることを確実に防止できる軒樋を提供することを課題としている。   The present invention takes the above-described conventional problems into consideration, and can reliably prevent water that has flowed down along the outer surface of the upper wall portion of the front plate from reaching the outer surface of the lower wall portion of the front plate. The challenge is to provide firewood.

本発明に係る軒樋は、上記した課題を解決するべく、下記の特徴を有する。
すなわち、本願の請求項１に係る軒樋は、前面板の上部の外面に水切り段差が設けられ、該水切り段差を介して前記前面板の上壁部と下壁部とが連設された軒樋において、前記水切り段差に、樋長手方向に沿って延在すると共に水を保持可能な溝が形成され、前記溝は、前記上壁部の外面の下端に連設された前方側の第一内面と、該第一内面の後方側に配設されていると共に前記下壁部の外面の上端に連設された後方側の第二内面と、を備えており、前記下壁部の外面の上端と前記第二内面の下端との間に形成された屈曲部の鉛直方向位置は、前記上壁部の外面の下端と前記第一内面の下端との間に形成された角部の先端の鉛直方向位置と略同位置に形成されていることを特徴とする。
本発明の軒樋の前記第二内面は、鉛直方向に沿って形成されていてもよい。
本発明の軒樋の前記溝は、前記第一内面と、前記第二内面と、前記第一内面と前記第二内面との間で湾曲する溝底面とにより形成され、断面視三角形状に形成されていてもよい。
前面板の外面に水切り段差が設けられ、該水切り段差を介して前記前面板の上壁部と下壁部とが連設された軒樋において、前記水切り段差に、樋長手方向に沿って延在するとともに表面張力によって水を保持可能な溝が形成され、前記水切り段差の奥行き寸法は、１〜５ｍｍの範囲内であり、また、前記溝の深さ寸法は、１〜５ｍｍの範囲内であることを特徴とするものであってもよい。 The eaves bowl according to the present invention has the following characteristics in order to solve the above-described problems.
That is, the eaves bowl according to claim 1 of the present application is provided with a draining step provided on the outer surface of the upper portion of the front plate, and the upper wall portion and the lower wall portion of the front plate are continuously provided via the draining step. In the ridge, a groove extending along the longitudinal direction of the ridge and capable of holding water is formed in the draining step, and the groove is a front-side first connected to the lower end of the outer surface of the upper wall portion. An inner surface and a second inner surface on the rear side that is disposed on the rear side of the first inner surface and is connected to the upper end of the outer surface of the lower wall portion. The vertical position of the bent portion formed between the upper end and the lower end of the second inner surface is the tip of the corner formed between the lower end of the outer surface of the upper wall portion and the lower end of the first inner surface. It is characterized by being formed at substantially the same position as the vertical position.
The second inner surface of the eaves of the present invention may be formed along the vertical direction.
The groove of the eaves of the present invention is formed by the first inner surface, the second inner surface, and a groove bottom surface curved between the first inner surface and the second inner surface, and is formed in a triangular shape in cross section. May be.
In an eaves wall where a drainage step is provided on the outer surface of the front plate, and the upper wall portion and the lower wall portion of the front plate are connected through the drainage step, the drainage step extends along the longitudinal direction of the drainage plate. And a groove capable of holding water by surface tension is formed, the depth dimension of the draining step is in the range of 1 to 5 mm, and the depth dimension of the groove is in the range of 1 to 5 mm. It may be characterized by being.

本発明に係る軒樋によれば、上記した解決手段によって下記の作用及び効果を奏する。
すなわち、本願の請求項１に係る軒樋によれば、上壁部の外面を伝って流れ落ちた水は、水切り段差の先端、つまり上壁部と水切り段差との連結部分において水切りされて落下する。また、前記した連結部分を越えて水が水切り段差側に回ったとしても、その水は、水切り段差に形成された溝の内側に毛細管現象によって吸引されると共に水の表面張力によって溝内に保持される。すなわち、前面板の外面を伝って流れ落ちる水の流通が、水切り段差による水切り機能及び溝による水保持機能によって２段階で規制される。
これにより、前面板の下壁部の外面にまで水が伝わることを確実に防止することができ、水切り段差の奥行き寸法を小さくしても、前面板の上壁部の外面を伝って流れ落ちた水が前面板の下壁部の外面にまで伝わることを確実に防止することができ、前面板の下壁部における水汚れを軽減させることができる。
そして、上壁部の外面を伝って上壁部の下端まで流れ落ちた水が溝内に保持されやすくなり、前面板の下壁部の外面にまで水が伝わることをより確実に防止することができる。 According to the eaves according to the present invention, the following actions and effects can be achieved by the above-described solving means.
That is, according to the eaves bowl according to claim 1 of the present application, the water that has flowed down along the outer surface of the upper wall portion is drained and dropped at the tip of the draining step, that is, the connecting portion between the upper wall portion and the draining step. . Moreover, even if water turns to the draining step side beyond the above-mentioned connecting portion, the water is sucked by capillarity inside the groove formed in the draining step and held in the groove by the surface tension of the water. Is done. That is, the flow of water flowing down along the outer surface of the front plate is regulated in two stages by the draining function by the draining step and the water holding function by the groove.
As a result, it is possible to reliably prevent water from reaching the outer surface of the lower wall portion of the front plate, and even if the depth dimension of the drainage step is reduced, the water flows down along the outer surface of the upper wall portion of the front plate. It is possible to reliably prevent water from reaching the outer surface of the lower wall portion of the front plate, and to reduce water contamination on the lower wall portion of the front plate.
And the water that has flowed down to the lower end of the upper wall portion along the outer surface of the upper wall portion is easily retained in the groove, and can be more reliably prevented from being transmitted to the outer surface of the lower wall portion of the front plate. it can.

本発明の実施の形態を説明するための軒樋の断面図である。It is sectional drawing of the eaves bowl for demonstrating embodiment of this invention. 本発明の実施の形態を説明するための軒樋の前面板の部分断面図である。It is a fragmentary sectional view of the front board of the eaves bowl for demonstrating embodiment of this invention.

以下、本発明に係る軒樋の実施の形態について、図面に基いて説明する。
なお、本実施の形態では、図１における縦方向を「鉛直方向」とし、軒樋１が延在する方向（図１の断面に対して垂直な方向）を「樋長手方向」とし、図１における横方向を「前後方向」とする。また、前後方向のうちの図示せぬ軒先側（図１における右側）を後方側とし、その反対側（図１における左側）を前方側とする。 Hereinafter, embodiments of the eaves according to the present invention will be described with reference to the drawings.
In the present embodiment, the vertical direction in FIG. 1 is referred to as “vertical direction”, and the direction in which the eaves 1 extends (direction perpendicular to the cross section in FIG. 1) is referred to as “longitudinal direction in FIG. The horizontal direction at is defined as “front-rear direction”. Moreover, the eaves side (not shown) in the front-rear direction (right side in FIG. 1) is the rear side, and the opposite side (left side in FIG. 1) is the front side.

図１に示すように、本実施の形態における軒樋１は、軒先等に図示せぬブラケットを介して設置される樋であり、断面視略多角形状の角樋である。この軒樋１は、例えば塩化ビニル等の合成樹脂からなる樹脂部材であり、射出成形法等の公知の樹脂成形法によって形成される。軒樋１の概略構成としては、樋長手方向に延設された底板２と、底板２の前方側の端部から立設された前面板３と、底板２の後方側の端部から立設された後面板４、を備えている。   As shown in FIG. 1, the eaves rod 1 according to the present embodiment is a eaves that is installed on a front end of the eaves or the like via a bracket (not shown), and has a substantially polygonal shape in cross section. The eaves 1 is a resin member made of a synthetic resin such as vinyl chloride, and is formed by a known resin molding method such as an injection molding method. The general structure of the eaves bowl 1 is as follows: a bottom plate 2 extending in the longitudinal direction of the eaves, a front plate 3 erected from the front end of the bottom plate 2, and a rear end of the bottom plate 2 The rear plate 4 is provided.

底板２は、軒樋１の底面を形成する平板状の板部であり、水平面に沿って形成されている。   The bottom plate 2 is a flat plate portion that forms the bottom surface of the eaves bowl 1, and is formed along a horizontal plane.

前面板３は、軒樋１の前面を形成する板部であり、樋長手方向に沿って延設されている。この前面板３には、前面板３の外面を伝って流れ落ちる水を切る（落下させる）ための水切り段差５が設けられており、この水切り段差５を介して前面板３の上壁部６と下壁部７とが連設されている。   The front plate 3 is a plate portion that forms the front surface of the eaves ridge 1 and extends along the longitudinal direction of the ridge. The front plate 3 is provided with a draining step 5 for cutting (falling) the water flowing down along the outer surface of the front plate 3, and the upper wall portion 6 of the front plate 3 is connected to the front plate 3 through the draining step 5. A lower wall portion 7 is provided continuously.

上壁部６は、樋長手方向に沿って延在する平板状の板部であり、鉛直方向に沿って形成されている。この上壁部６は、前面板３の上端の縁部を形成する帯状の板部であり、上壁部６の高さ寸法（鉛直方向の寸法）は下壁部７の高さ寸法に比べて相当に小さい。   The upper wall portion 6 is a flat plate portion extending along the longitudinal direction of the ridge, and is formed along the vertical direction. The upper wall portion 6 is a strip-shaped plate portion that forms the edge of the upper end of the front plate 3, and the height dimension (vertical dimension) of the upper wall portion 6 is higher than the height dimension of the lower wall portion 7. Is quite small.

下壁部７は、底板２や上壁部６に対して傾斜された板部であり、上方に向かうに従い前方側に傾斜されている。また、下壁部７は、軒樋１の内方側（後方側）に向けて膨出するように断面視円弧状に湾曲されている。この下壁部７の上端は、上壁部６の下端の後方側に配置されており、水切り段差５を介して上壁部６の下端に連結されている。また、下壁部７の下端は、断面視略Ｌ字状の段部９を介して底板２の前方側の端部に連結されている。   The lower wall portion 7 is a plate portion that is inclined with respect to the bottom plate 2 and the upper wall portion 6, and is inclined forward as it goes upward. Further, the lower wall portion 7 is curved in a circular arc shape in cross section so as to bulge toward the inner side (rear side) of the eaves rod 1. The upper end of the lower wall portion 7 is disposed on the rear side of the lower end of the upper wall portion 6 and is connected to the lower end of the upper wall portion 6 through a draining step 5. Further, the lower end of the lower wall portion 7 is connected to an end portion on the front side of the bottom plate 2 through a step portion 9 having a substantially L shape in cross section.

水切り段差５は、上壁部６の下端と下壁部７の上端との間に介在された下向きの段差であり、前面板３の上部の外面に位置している。この水切り段差５には、樋長手方向に沿って延在する溝８が形成されている。   The draining step 5 is a downward step interposed between the lower end of the upper wall portion 6 and the upper end of the lower wall portion 7, and is located on the outer surface of the upper portion of the front plate 3. The draining step 5 is formed with a groove 8 extending along the longitudinal direction of the ridge.

図２に示すように、上記した溝８は、下向きに開口された溝であって、上壁部６の外面から水切り段差５に回った水を流入すると共にその水を保持することができる溝である。
詳しく説明すると、溝８は、溝幅寸法（前後方向の寸法）が上方に向かうに従い漸次縮幅された断面視台形状の溝であり、その概略構成としては、上方に向かうに従い後方側に傾斜した傾斜面８０（本発明の第一内面に相当する。）と、傾斜面８０の後方側に配設されて鉛直方向に沿って形成された鉛直面８１（本発明の第二内面に相当する。）と、傾斜面８０の上端と鉛直面８１の上端との間に配設されて水平面に沿って形成された溝底面８２と、によって画成されている。上記した傾斜面８０の下端は、Ｒを付けた丸角部８３（本発明の角部に相当する。）を介して上壁部６の外面の下端に連設されており、また、上記した鉛直面８１の下端は、鈍角に屈曲した屈曲部８４を介して下壁部７の外面の上端に連設されている。さらに、上記した屈曲部８４の鉛直方向位置は、丸角部８３の下端（先端）の鉛直方向位置と略同位置に形成されている。
なお、上記した水切り段差５の奥行き寸法は、できる限り小さいことが好ましく、１〜５ｍｍの範囲内であり、また、溝８の深さ寸法（鉛直方向の寸法）は、１〜５ｍｍの範囲ないであり、例えば、水切り段差５の奥行き寸法を２ｍｍとし、溝８の深さ寸法を１．４ｍｍとする。 As shown in FIG. 2, the groove 8 described above is a groove that is opened downward, and is a groove that can flow water from the outer surface of the upper wall portion 6 to the draining step 5 and can retain the water. It is.
Explaining in detail, the groove 8 is a trapezoidal groove whose sectional width is gradually reduced as the groove width dimension (the dimension in the front-rear direction) goes upward, and as a general configuration, the groove 8 is inclined rearward as it goes upward. An inclined surface 80 (corresponding to the first inner surface of the present invention) and a vertical surface 81 (corresponding to the second inner surface of the present invention) disposed along the vertical direction on the rear side of the inclined surface 80. And a groove bottom surface 82 formed between the upper end of the inclined surface 80 and the upper end of the vertical surface 81 and formed along the horizontal plane. The lower end of the inclined surface 80 described above is connected to the lower end of the outer surface of the upper wall portion 6 via a rounded corner portion 83 (corresponding to the corner portion of the present invention) with an R, as described above. The lower end of the vertical surface 81 is connected to the upper end of the outer surface of the lower wall portion 7 via a bent portion 84 bent at an obtuse angle. Further, the vertical position of the bent portion 84 is formed at substantially the same position as the vertical position of the lower end (tip) of the round corner portion 83.
In addition, it is preferable that the depth dimension of the above-mentioned water draining level | step difference 5 is as small as possible, and is in the range of 1-5 mm, and the depth dimension (vertical dimension) of the groove | channel 8 does not have the range of 1-5 mm. For example, the depth dimension of the draining step 5 is 2 mm, and the depth dimension of the groove 8 is 1.4 mm.

また、図１に示すように、前面板３の上端部には、図示せぬブラケットに掛止される前方側ブラケット掛止部１０が設けられている。この前方側ブラケット掛止部１０は、水切上壁部６の内面から後方側に向けて突出された爪部１３と、下壁部７の上端部の内面から後方側に向けて突出された支持部１４と、からなる。上記した支持部１４の上に図示せぬブラケットの先端部が載置されると共に上記した爪部１３がブラケットの先端部に掛止される。   Moreover, as shown in FIG. 1, the front side bracket latching part 10 latched by the bracket which is not shown in figure is provided in the upper end part of the front plate 3. As shown in FIG. The front bracket hooking portion 10 includes a claw portion 13 projecting from the inner surface of the draining upper wall portion 6 toward the rear side, and a support projecting rearward from the inner surface of the upper end portion of the lower wall portion 7. Part 14. A front end portion of a bracket (not shown) is placed on the support portion 14 and the claw portion 13 is hooked on the front end portion of the bracket.

後面板４は、軒樋１の後面を形成する板部であり、樋長手方向に沿って延設されている。この後面板４は、前面板３（下壁部７）に対向配置されている。また、後面板４は、前面板３よりも低い壁部であり、後面板４の上端の高さ（鉛直方向の位置）は、前面板３の下壁部７の中間部分程度となっている。また、後面板４の上端部には、図示せぬブラケットに掛止される後方側ブラケット掛止部１１が設けられている。この後方側ブラケット掛止部１１は、後面板４の上端部の内面から前方側に突出されており、この後方側ブラケット掛止部１１の下面に図示せぬブラケットの掛止部が掛止される。   The rear surface plate 4 is a plate portion that forms the rear surface of the eaves rod 1 and extends along the longitudinal direction of the collar. The rear plate 4 is disposed to face the front plate 3 (lower wall portion 7). The rear plate 4 is a lower wall than the front plate 3, and the height (vertical position) of the upper end of the rear plate 4 is about the middle portion of the lower wall 7 of the front plate 3. . Further, a rear side bracket latching portion 11 that is latched by a bracket (not shown) is provided at the upper end portion of the rear plate 4. The rear bracket latching portion 11 protrudes forward from the inner surface of the upper end portion of the rear plate 4, and a bracket latching portion (not shown) is latched on the lower surface of the rear bracket latching portion 11. The

上記した軒樋１によれば、前面板３の上壁部６の外面に付着した水は、上壁部６の外面を伝って流れ落ち、水切り段差５の先端、つまり上壁部６と水切り段差５との連結部分（丸角部８３）において水切りされて落下する。また、丸角部８３の表面に沿って水が水切り段差５側に回ったとしても、その水は、毛細管現象によって溝８の内側に流入して水の表面張力によって溝８内に保持される。すなわち、前面板３の外面を伝って流れ落ちる水の流通が、水切り段差５による水切り機能及び溝８による水保持機能によって２段階で規制される。これにより、前面板３の下壁部７の外面にまで水が伝わることを確実に防止することができ、水切り段差５の奥行き寸法を小さくしても、前面板３の下壁部６の外面にまで水が伝わることを防止することができる。その結果、前面板３の下壁部７の外面における水汚れを軽減させることができる。   According to the eaves bowl 1 described above, the water adhering to the outer surface of the upper wall portion 6 of the front plate 3 flows down along the outer surface of the upper wall portion 6, and the tip of the draining step 5, that is, the upper wall portion 6 and the draining step. 5 is drained and dropped at the connecting portion (round corner 83). Further, even if water turns to the draining step 5 side along the surface of the round corner 83, the water flows into the inside of the groove 8 by capillary action and is held in the groove 8 by the surface tension of the water. . That is, the flow of water flowing down along the outer surface of the front plate 3 is regulated in two stages by the draining function by the draining step 5 and the water holding function by the groove 8. Accordingly, it is possible to reliably prevent water from reaching the outer surface of the lower wall portion 7 of the front plate 3, and the outer surface of the lower wall portion 6 of the front plate 3 even if the depth dimension of the draining step 5 is reduced. It is possible to prevent water from being transmitted to the surface. As a result, water contamination on the outer surface of the lower wall portion 7 of the front plate 3 can be reduced.

また、上記した軒樋１では、前面板３の上壁部６が鉛直方向に沿って形成されているので、上壁部６の外面に付着した水が流れ落ちやすくなり、且つ、上壁部６の外面を伝って上壁部６の下端まで流れ落ちた水が水切り段差５側に回りにくくなる。これにより、前面板３の下壁部７の外面及び上壁部６の外面における水汚れを軽減させることができる。   Further, in the eaves bowl 1 described above, since the upper wall portion 6 of the front plate 3 is formed along the vertical direction, water attached to the outer surface of the upper wall portion 6 is likely to flow down, and the upper wall portion 6 The water that has flowed down to the lower end of the upper wall portion 6 through the outer surface of the water becomes difficult to turn to the draining step 5 side. Thereby, the water stain | pollution | contamination in the outer surface of the lower wall part 7 of the front plate 3 and the outer surface of the upper wall part 6 can be reduced.

また、上記した軒樋１では、鉛直面８１の下端と下壁部７の外面の上端との間に形成された屈曲部８４の鉛直方向位置が、傾斜面８０の下端と上壁部６の外面の下端との間に形成された丸角部８３の下端の鉛直方向位置と略同位置に形成されているので、上壁部６の外面を伝って上壁部６の下端まで流れ落ちた水が溝８内に保持されやすくなる。これにより、前面板３の上壁部６の外面を伝って流れ落ちた水が前面板３の下壁部７の外面に伝わることを確実に防止することができる。   Further, in the eaves bowl 1 described above, the vertical position of the bent portion 84 formed between the lower end of the vertical surface 81 and the upper end of the outer surface of the lower wall portion 7 is the lower end of the inclined surface 80 and the upper wall portion 6. Since it is formed at substantially the same position as the vertical direction of the lower end of the round corner 83 formed between the lower end of the outer surface, the water that has flowed down to the lower end of the upper wall 6 through the outer surface of the upper wall 6 Is easily held in the groove 8. Thereby, it is possible to reliably prevent the water flowing down along the outer surface of the upper wall portion 6 of the front plate 3 from being transmitted to the outer surface of the lower wall portion 7 of the front plate 3.

また、上記した軒樋１では、溝８の上端に、水平面に沿った溝底面８２が形成されているので、溝８の周りに亀裂が生じにくい。仮に、断面視において頂点が鋭角な三角形状を成す溝が形成されていると、その三角形の頂点部分から亀裂が生じやすくなり、前面板３が破損しやすくなるおそれがあるが、上記した軒樋１のように、溝８を断面視台形状に形成することにより、上記した亀裂が生じにくくなる。これにより、溝８を形成した場合における軒樋１の耐久性の低下を抑えることができる。   Further, in the eaves bowl 1 described above, since the groove bottom surface 82 along the horizontal plane is formed at the upper end of the groove 8, cracks are unlikely to occur around the groove 8. If a groove having a triangular shape with a sharp apex in a cross-sectional view is formed, cracks are likely to occur from the apex portion of the triangle, and the front plate 3 may be easily damaged. As shown in FIG. 1, by forming the groove 8 in a trapezoidal shape when viewed in cross section, the above-described crack is hardly generated. Thereby, the fall of the durability of the eaves 1 at the time of forming the groove | channel 8 can be suppressed.

以上、本発明に係る軒樋の実施の形態について説明したが、本発明は上記した実施の形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、上記した実施の形態では、前面板３の上端部に前方側ブラケット掛止部１０が設けられ、後面板４の上端部に後方側ブラケット掛止部１１が設けられ、これら前方側ブラケット掛止部１０や後方側ブラケット掛止部１１に図示せぬブラケットを掛止させることで軒樋１が建物に取り付けられる構造となっているが、本発明は、軒樋１の建物に対する取付構造は適宜変更可能であり、上記した前方側ブラケット掛止部１０や後方側ブラケット掛止部１１を適宜変更若しくは省略することができる。 The embodiment of the eaves according to the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the present invention.
For example, in the above-described embodiment, the front bracket hooking portion 10 is provided at the upper end portion of the front plate 3, and the rear bracket hooking portion 11 is provided at the upper end portion of the rear plate 4. The eaves rod 1 is attached to the building by hooking a bracket (not shown) to the stop portion 10 or the rear bracket hooking portion 11. The front bracket hooking portion 10 and the rear bracket hooking portion 11 described above can be appropriately changed or omitted.

また、上記した実施の形態における軒樋１は、いわゆる角樋であって、底板２の前方側の端部から前面板３が立設され、前面板３の上壁部６が鉛直方向に沿って形成され、前面板３の下壁部７が上方に向かうに従い前方側に傾斜されているが、本発明は、他の断面形状を成す軒樋であってもよい。例えば、前面板３の上壁部が上方に向かうに従い後方側若しくは前方側に傾斜された形状であってもよい。また、前面板３の下壁部が上方に向かうに従い後方側に傾斜されたり鉛直方向に沿って形成されたりした形状であってもよい。さらに、本発明は、角樋以外の軒樋であってもよく、例えば断面視略円弧状の丸樋であってもよい。   Further, the eaves bowl 1 in the above-described embodiment is a so-called square bowl, and the front plate 3 is erected from the front end portion of the bottom plate 2, and the upper wall portion 6 of the front plate 3 is along the vertical direction. The lower wall portion 7 of the front plate 3 is inclined forward as it goes upward, but the present invention may be an eave ridge having another cross-sectional shape. For example, the shape inclined to the back side or the front side may be sufficient as the upper wall part of the front plate 3 goes upwards. Further, the shape may be such that the lower wall portion of the front plate 3 is inclined rearward as it goes upward or is formed along the vertical direction. Further, the present invention may be an eaves other than a square ridge, for example, a round ridge having a substantially arc shape in cross section.

また、上記した実施の形態では、断面視台形状の溝８が形成されているが、本発明は、他の形状の溝を形成することも可能である。例えば、断面視三角形状の溝を水切り段差５に形成することも可能である。この場合、上述したような亀裂の発生を防止するため、三角形の頂点にＲをつけることが好ましい。また、断面視半円状やＵ字状、矩形状の溝を水切り段差５に形成することも可能である。   Further, in the above-described embodiment, the groove 8 having a trapezoidal shape in section is formed, but the present invention can also form a groove having another shape. For example, it is possible to form a groove having a triangular shape in cross section in the draining step 5. In this case, in order to prevent the occurrence of cracks as described above, it is preferable to add an R to the apex of the triangle. It is also possible to form a semicircular, U-shaped or rectangular groove in cross section in the draining step 5.

また、上記した実施の形態では、溝８の前方側の内面（第一内面）が上方に向かうに従い後方側に傾斜した傾斜面８０となっており、溝８の後方側の内面（第二内面）が鉛直方向に沿って形成された鉛直面８１となっているが、本発明は、溝の内面の傾きは適宜変更可能である。例えば、溝の後方側の内面（第二内面）が上方に向かうに従い前方側に傾斜し、溝が縦断面視において二等辺三角形状に形成されていてもよく、或いは、上壁部の外面が上方に向かうに従い前方側に傾斜している場合には、溝８の前方側の内面（第一内面）が鉛直方向に沿って形成されていてもよい。
また、上記した実施の形態では、傾斜面８０の下端と上壁部６の外面の下端との間に、Ｒを付けた丸角部８３が設けられているが、本発明は、Ｒを付けずに鋭角な角部を介して、傾斜面８０の下端と上壁部６の外面の下端とが連設されていてもよい。 Further, in the above-described embodiment, the inner surface (first inner surface) on the front side of the groove 8 is the inclined surface 80 inclined rearward as it goes upward, and the inner surface (second inner surface) on the rear side of the groove 8. ) Is a vertical surface 81 formed along the vertical direction, but in the present invention, the inclination of the inner surface of the groove can be appropriately changed. For example, the inner surface (second inner surface) on the rear side of the groove may be inclined forward as it goes upward, and the groove may be formed in an isosceles triangle shape in a longitudinal sectional view, or the outer surface of the upper wall portion may be When it inclines ahead as it goes upwards, the inner surface (first inner surface) on the front side of the groove 8 may be formed along the vertical direction.
In the above-described embodiment, the round corner portion 83 with R is provided between the lower end of the inclined surface 80 and the lower end of the outer surface of the upper wall portion 6. Instead, the lower end of the inclined surface 80 and the lower end of the outer surface of the upper wall portion 6 may be connected to each other through an acute corner.

その他、本発明の主旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した変形例を適宜組み合わせてもよい。   In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

１ 軒樋， ３ 前面板， ５ 水切り段差， ６ 上壁部， ７ 下壁部， ８ 溝， ８０ 傾斜面（第一内面）， ８１ 鉛直面（第二内面）， ８３ 丸角部（角部） 1 eaves, 3 front plate, 5 draining step, 6 upper wall, 7 lower wall, 8 groove, 80 inclined surface (first inner surface), 81 vertical surface (second inner surface), 83 round corner (corner) )

Claims (4)

前面板の上部の外面に水切り段差が設けられ、該水切り段差を介して前記前面板の上壁部と下壁部とが連設された軒樋において、
前記水切り段差に、樋長手方向に沿って延在すると共に水を保持可能な溝が形成され、
前記溝は、前記上壁部の外面の下端に連設された前方側の第一内面と、該第一内面の後方側に配設されていると共に前記下壁部の外面の上端に連設された後方側の第二内面と、を備えており、
前記下壁部の外面の上端と前記第二内面の下端との間に形成された屈曲部の鉛直方向位置は、前記上壁部の外面の下端と前記第一内面の下端との間に形成された角部の先端の鉛直方向位置と略同位置に形成されていることを特徴とする軒樋。 In the eaves where a drainage step is provided on the outer surface of the upper part of the front plate, and the upper wall portion and the lower wall portion of the front plate are connected through the drainage step,
In the draining step, a groove extending along the longitudinal direction of the ridge and capable of holding water is formed,
The groove is disposed on the front inner surface connected to the lower end of the outer surface of the upper wall portion and on the rear side of the first inner surface, and is connected to the upper end of the outer surface of the lower wall portion. A second inner surface on the rear side,
The vertical position of the bent portion formed between the upper end of the outer surface of the lower wall portion and the lower end of the second inner surface is formed between the lower end of the outer surface of the upper wall portion and the lower end of the first inner surface. The eaves bowl is characterized by being formed at substantially the same position as the vertical position of the tip of the corner. 前記第二内面は、鉛直方向に沿って形成されていることを特徴とする請求項１に記載の軒樋。The eaves bowl according to claim 1, wherein the second inner surface is formed along a vertical direction. 前記溝は、前記第一内面と、前記第二内面と、前記第一内面と前記第二内面との間で湾曲する溝底面とにより形成され、断面視三角形状に形成されていることを特徴とする請求項１又は２に記載の軒樋。The groove is formed by the first inner surface, the second inner surface, and a groove bottom surface curved between the first inner surface and the second inner surface, and is formed in a triangular shape in sectional view. The eaves bowl according to claim 1 or 2. 前面板の外面に水切り段差が設けられ、該水切り段差を介して前記前面板の上壁部と下壁部とが連設された軒樋において、In the eaves where a drainage step is provided on the outer surface of the front plate, and the upper wall portion and the lower wall portion of the front plate are connected through the drainage step,
前記水切り段差に、樋長手方向に沿って延在するとともに表面張力によって水を保持可能な溝が形成され、In the draining step, a groove extending along the longitudinal direction of the ridge and capable of holding water by surface tension is formed,
前記水切り段差の奥行き寸法は、１〜５ｍｍの範囲内であり、また、前記溝の深さ寸法は、１〜５ｍｍの範囲内であることを特徴とする軒樋。The depth dimension of the draining step is in a range of 1 to 5 mm, and the depth dimension of the groove is in a range of 1 to 5 mm.
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